It's tough. You want to work all day and all night. You think that if you take just a moment away from it that it will falter. Not the case. I started out that way, but I have found that even if you take the time to eat dinner with family, it's that time that helps you recharge and regroup. That is the most important time as it allows you to reflect. Without it, you work tirelessly and arguably are less efficient because you haven't taken the necessary breaks. Your brain can only process so much. Take the breaks. Go get ice cream. Go run. Go lift. Go to a bar. For God's sake, go do something that's not work-related. Then, come back and work. Unless you're drunk, then sleep. Just take time away from it.